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Finding the Fourth Proportional to 1,978,076.40, 2,729,746.92 and 1,072,658.16

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Solution

The fourth proportional to 1,978,076.40, 2,729,746.92 and 1,072,658.16 is: 1,480,269.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,076.40 : 2,729,746.92 = 1,072,658.16 : x
  2. Step 2: Convert to fraction form
    1,978,076.40/2,729,746.92 = 1,072,658.16/x
  3. Step 3: Cross multiply
    1,978,076.40x = 2,729,746.92 × 1,072,658.16
  4. Step 4: Simplify right side
    1,978,076.40x = 2,928,085,308,472.87
  5. Step 5: Solve for x
    x = 2,928,085,308,472.87/1,978,076.40
  6. Step 6: Final answer
    x = 1,480,269.07

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